<template>
    <div class="app-container">
        <el-form ref="role" :model="role" :rules="validateRules" label-width="120px">
            <el-form-item label="角色名称" prop="roleName">
                <el-input v-model="role.roleName" style="width:200px" />
            </el-form-item>
            <el-form-item>
                <el-button :disabled="saveBtnDisabled" type="primary" @click="saveOrUpdate">保存</el-button>
            </el-form-item>
        </el-form>
    </div>
</template>

<script>
import roleApi from "@/api/acl/role";

const defaultForm = {
    roleName: "",
};

export default {
    data() {
        return {
            role: defaultForm,
            saveBtnDisabled: false, // 保存按钮是否禁用,
            validateRules: {
                roleName: [
                    {
                        required: true,
                        trigger: "blur",
                        message: "角色名必须输入",
                    },
                ],
            },
        };
    },

    // 监听器
    watch: {
        $route(to, from) {
            this.init();
        },
    },

    // 生命周期方法（在路由切换，组件不变的情况下不会被调用）
    created() {
        this.init();
    },

    methods: {
        // 表单初始化
        init() {
            if (this.$route.params && this.$route.params.id) {
                const id = this.$route.params.id;
                this.fetchDataById(id);
            } else {
                // 对象拓展运算符：拷贝对象，而不是赋值对象的引用
                this.role = { ...defaultForm };
            }
        },

        saveOrUpdate() {
            this.$refs.role.validate((valid) => {
                if (valid) {
                    this.saveBtnDisabled = true; // 防止表单重复提交
                    if (!this.role.id) {
                        this.saveData();
                    } else {
                        this.updateData();
                    }
                }
            });
        },

        // 新增角色
        saveData() {
            roleApi.save(this.role).then((response) => {
                // debugger
                if (response.success) {
                    this.$message({
                        type: "success",
                        message: response.message,
                    });
                    this.$router.push({ path: "/acl/role/list" });
                }
            });
        },

        // 根据id更新记录
        updateData() {
            // teacher数据的获取
            roleApi.update(this.role).then((response) => {
                if (response.success) {
                    this.$message({
                        type: "success",
                        message: response.message,
                    });
                    this.$router.push({ path: "/acl/role/list" });
                }
            });
        },

        // 根据id查询记录
        fetchDataById(id) {
            roleApi.get(id).then((response) => {
                this.role = response.data.role;
            });
        },
    },
};
</script>
